INTRODUCTION Login This itinerary covers the slopes and the bottom of the Valley, a depression that divides the Isonzo Karst from the Slovenian and connecting through state 55, Gorizia, Trieste and Monfalcone. There are many interesting ideas that we find along the way: the trench warfare during the First World War witnessed by the panels of the Open Air Museum of the Great War on the Carso, the traces of the first human settlements in the prehistoric Castellazzo, the karst phenomena of Doberdò lake. And finally, for those lucky enough to visit these places in the fall, bright shades from yellow to red color of these extraordinary places, able to carve out an important chapter in any book of history, geography and science. DETAILED DESCRIPTION PHOTO GALLERY